DeLonghi DEC21 manual

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  • Brand: DeLonghi
  • Product: Air purifier
  • Model/name: DEC21
  • Filetype: PDF
  • Available languages: German, English

Table of Contents

Page: 0
DEC 21
5748010000 6-08-2003 18:02 Pagina 1
Page: 1
Dehumidifier 2
Intake grille
Air filter
Lifting handle
Air outlet grille
Condensate collection tank
condensate drain hose (2 m.)
rubber bung
Control Panel
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Page: 2
fig. 1
fig. 2
Thank you for choosing this dehumidifier. To get the very best
out of your dehumidifier it is advisable to read these instructions
before using the appliance. By doing so you will obtain optimum
results and maximum safety.
Electrical connections
Before plugging the appliance into the power socket, check that:
• The mains power supply corresponds to the power supply indicat-
ed on the rating plate.
• The power socket and electrical circuit are adequate for the appliance.
• The power socket matches the plug. If this is not the case, have the
plug replaced by a qualified electrician;
• The power socket must be adequately earthed;
Failure to respect this safety rule absolves the manufacturer from all liability.
This appliance is manufactured in compliance with EEC standard EN
55014 on the suppression of radio interference.
• The cable must be replaced by approved service personnel only.
1) Positioning
Position your dehumidifier wherever your condensation or damp problem is. A
clear area of at least 50cm must be left at the front and back of the dehumidi-
fier to ensure adequate ventilation. Do not place the dehumidifier next to a
radiator or other heat source as this will reduce its performance.
For ongoing usage we suggest positioning in a hallway or on a landing.
Please remember to keep internal doors ajar to allow air circulation.
Before using your dehumidifier for the first time,it should be stood
upright for 24hrs prior to use. When moving it from room to room
it is advisable to wait an hour before using it again.
2) Water Collection
The water collected (condensate) can be drained in one of two ways:
A) Draining into the tank
The condensate can be drained directly into the tank located inside
the appliance ).
The tank can be easily removed and has a handle making it sim
ple to carry and empty. (fig. 1).
B) Continuous external draining
If the appliance is to be operated for long periods of time but you are
unable to empty the tank, you are recommended to use the continu-
ous drain facility.
• Drill the inside of the drain spout using a small drill bit. (Fig. 2).
• Fasten the rubber hose to the spout. For models without drain
hoses supplied, we suggest you purchase a rubber hose around 2m
long, with an internal diameter of 9.5 mm.
• Make sure that the hose is not higher than the spout (Fig. 3), otherwise
water will remain in the tank; also check that the hose is not twisted.
N.B: Keep the rubber bung.You will need it to plug the hose or close
the spout if you revert to draining into the tank (see point A). fig. 3
drain spout
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Page: 3
Tank control system
This dehumidifier is fitted with a special device to ensure correct
A red indicator light on the control panel comes on to warn the
user when:
1. the tank is full empty the tank
2. the tank is missing replace the tank
3. the tank is in the wrong position position the tank correctly
4. in continuous drain: the hose is obstructed or placed too high
above the drain spout remove the obstruction.
Once the cause has been eliminated, the light goes out and the
appliance resumes operation.
Dehumidification light
This switches on when the machine is dehumidifying.The light
remains on only when the appliance is effectively dehumidifying; if
the humidity in the room is already low enough, the light will be
Dehumidification standby/low temperature
operation light
The light comes on in the following two cases:
1) To signal a delay of around 3 minutes in the start-up of the
appliance.This is due to a safety device which protects the com-
2) To signal low temperature operation.When the room tempera-
ture is too low, the electronic low temperature operation
device is activated. This device allows the appliance to operate
by alternating dehumidification cycles and fan only cycles.
This is to avoid the formation of ice. For frequent use in cold
environments, it is recommended to heat the room at the same
time.This allows the dehumidifier to operate in conditions that
ensure better performance and faster dehumidification.
Heating light
This switches on when the machine is heating.The light remains on
only when the appliance is effectively heating; if the temperature in
the room is already high enough, the light will be off.
Dehumidifier 4
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How to dehumidify
How to dehumidify
1) Plug the appliance into a mains socket.
2) Check that the “tank full/tank missing” light is off, if not
place the tank in the correct position or empty it if it’s necessary.
3) To easily select the right humidity level, we suggest you operate
as follows:
Use the function selector to choose (for maximum dehumidi-
fying power) or (for minimum dehumidifying power).
Turn the humidistat clockwise as far as it will go to the MAX position.
(The dehumidification standby light comes on for the first 3
minutes after which the appliance starts dehumidifying).
Leave the unit on this setting until signs of excess moisture (e.g.
condensation on windows) decrease.
At this point select or and slowly turn the humidistat
knob anti-clockwise until the dehumidification light switches off.
The dehumidifier will then keep the humidity at the selected level
How to heat
1) Plug the appliance into a mains socket.
2) It is possible to adjust the room temperature by turning the
thermostat knob on one of the available position (MIN-MED-
MAX). If you wish to heat the room, set the thermostat to the
temperature level desired.
3) Select the economy ( = 1250 W) or maximum ( = 2000
W) heating level on the function selector.
To easily select the right temperature level, we suggest you to
operate as follows:
Turn the thermostat to position MAX
When the temperature in the room has reached the required
level, slowly turn the thermostat knob anticlockwise until the heat-
ing light goes out.
The thermostat will then keep the temperature in the room at the
standby light
knob Function
Tank full/
tank missing
fig. 4
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Page: 5
fig, 5
Dehumidifier 6
Combined mode, (dehumidifying + heating)
1) Plug the appliance into a mains socket.
2) Check that the “tank full/no tank” warning light is off.
3) Select maximum (combi MAX) or minimum (combi MIN) power
level. Consequently the electrical power will be 1030W or 1530W.
4) It is possible to adjust the desired room humidity temperature
°C by turning the humidistat and the thermostat, (see chapters
“How to dehumidify” and “How to heat”)
Note: The appliance only stops completely when the level of
humidity set is reached. If the tank is full, the full tank warning
light comes on and the refrigerant circuit stops however the
heating function will continue to work.
Always remove the plug from the power socket before performing
any cleaning or maintenance operations. For safety reasons, never
wash the dehumidifier using a water jet.
Cleaning the cabinet
• Clean the appliance using a damp cloth then dry with a dry cloth.
• Never use petrol, alcohol or solvents to clean the appliance.
• Never spray the appliance with insecticides or similar.These
could cause the paint to flake or plastic parts to warp.
Cleaning the permanent air filter
Your dehumidifier is fitted with a permanent air filter. If the filter
is dirty, air circulation is compromised and the efficiency
of the dehumidifying and air purifying functions decreases.
It is therefore good practice to clean the filter at regular intervals.
The frequency depends on the duration and conditions of operation.
If the unit is used constantly or on a regular basis, you are
recommended to clean the filter once a week.
• Remove the air filter, by pulling it as shown in fig. 5.
• Use a vacuum cleaner to remove dust accumulations from the fil-
ter. If the filter is very dirty, wash in warm water and rinse several
times.The temperature of the water should not exceed 40˚C.After
washing the filter, allow to dry completely before replacing it.
If the appliance is not used for long periods
• Unplug from the mains socket and empty the tank.
• Clean and reposition the filter.
• Cover the appliance so that dust does not build up.
Accessories available for your dehumidifier
Castors: a kit of 4 castors to allow you to wheel your dehumidifi-
er from room to room, is available to order.
Wall mounting brackets: a set of brackets to wall mount your
dehumidifier is available to order.
Contact De’ Longhi 01933 442040 to order your accessories.
5748010000 6-08-2003 18:02 Pagina 6
Page: 6
Problem solving
The appliance does not
work in dehumidifying
mode (indicator light off)
• the appliance is not
plugged in
• there is no current
• the humidistat is on
• the tank is full of
• the tank is incorrectly
• filter clogged
• the temperature or
humidity of the home
is too low
• room too large
• too many sources of
humidity in room
(boiling pots etc.)
• the appliance’s safety
device has intervened
• plug into the mains
• check the power supply
• turn the humidistat to
the max.
• empty the tank
• firmly place the tank in
the correct position
• clean the filter
• in certain conditions, it
is normal for the appli-
ance not to dehumidify
(in these cases the
room being dehumidi-
fied should also be
• wait for 3 minutes
The appliance operates in
dehumidifying mode (light
on) but the humidity is not
The dehumidifier doesn’t
work for about 3 minutes
from turning on
Check the following points before calling your Service Centre
The appliance does not
operate in heating mode
(light off)
• the appliance is not
plugged in
• there is no current
• the thermostat is set
to minimum
• plug into the mains
• check the power supply
• set the thermostat to
the required position
The appliance operates in
heating mode (light off)
but does not heat
• the area is too big
• there are open win-
• the electrical resistor
protective device has
cut in
• close the windows
• to reset, turn the
appliance off for sever-
al minutes, eliminate
the cause of the over-
heating then turn on
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Dehumidifier 8
Technical Characteristics
Power supply voltage See rating label
Absorbed power dehumidifying only “
Maximum absorbed power “
Maximum absorbed current “
Defrosting device yes
Humidistat yes
Fan speeds 2
Air filter yes
Purifying filter no yes
Dimensions LxHxD 570x360x300mm
Tank capacity 4 litres
Operating limits: Heating Dehumidifying
• temperature Max. 27°C 2° - 32°
• relative humidity Max. 90% 30 - 95%
Brief note on humidity
Air always contains a certain amount of water in the form of water
This amount of moisture is commonly known as the humidity.
The capacity of the air to hold water vapour increases with the
temperature.This is why in our homes, as soon as the temperature
decreases, the vapour contained in the air condenses, as is evident
on the colder surfaces in the room, such as the windows, walls etc.
The purpose of a dehumidifier is to remove the excess moisture
from the air, to control condensation within the home.
Experts have established that the optimum environmental condi-
tions for our well being and to preserve objects are obtained
between 40% and 60% relative humidity. Below these levels the air
can feel too dry and may cause skin complaints and even static
electric shocks.
If temperatures in the home are lower than 10°C for prolonged
periods low level heating will be necessary to allow the condensate
to evaporate into the air before dehumidification can take place.
The air will however be slightly warmed by the dehumidifier as the
dry air leaving the dehumidifier is about 1°C higher than normal
room temperature.
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• Use this appliance only as described in this instruction manual.
As with any electrical appliance, whilst the instructions aim to cover as
many eventualities as possible caution and common sense should be
applied when operating your appliance.
• This appliance is designed to dehumidify domestic rooms and must not
be used for other purposes.
• Do not use in the vicinity of baths, showers, sinks, swimming pools, etc.
• In the case that the power cable becomes damaged, this must be substitut-
ed only by specialised personnel authorised by the manufacturer.
• It is dangerous to modify or alter the characteristics of the appliance in any way.
• If the appliance requires repair, always contact a Technical Service
Centre authorised by the manufacturer.Always insist on original spare
parts. Repairs carried out by unauthorised personnel may be dangerous
and invalidate the guarantee.
• This appliance must be used exclusively by adults. Do not allow children
to play with the appliance.
• The appliance must be connected to an efficient earth installation. Have
your electrical circuit checked by a qualified electrician.
• The use of extension leads is not recommended, however if it is neces-
sary then follow carefully the extension lead’s instructions, and most
importantly ensure that the extension lead is correctly rated in accor-
dance with the heater being used and NEVER overloaded.
• Before cleaning or maintenance operations, always unplug the appliance
from the mains.
• Do not move the appliance by pulling the power cable.
• Do not install the appliance in rooms containing gas, oil or sulphur. Do
not install near sources of heat.
• Do not use the appliance on inclined surfaces.
• Keep the unit at least 50 cm away from inflammable substances (alcohol
etc) or pressurised containers (eg. aerosol cans).
• Do not rest heavy or hot objects on top of the appliance.
• Clean the air filter regularly.
• Always transport the appliance upright or resting on one side.
Remember to drain the tank before moving the appliance.Wait at least
1 hour after transporting the appliance before starting it
• R134a is a refrigerant that complies with the EEC environmental stan-
dards; nonetheless, the refrigerant circuit on the machine should not be
perforated.At the end of its working life, take the appliance to a recy-
cling centre for disposal of the refrigerant.
• The materials used for packaging can be recycled.You are therefore recom-
mended to dispose of them in special differentiated waste collection containers.
• The appliance must be installed in conformity with the relevant national
• Do not use the appliance outdoors.
• Do not obstruct the air intake or outlet.
Technical assistance
Keep the list of Technical Service Centres and identify the Centre nearest you.
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Dehumidifier 10
Electrical requirements
Before using this appliance ensure that the voltage indicated
on the product corresponds with the main voltage in your
home, if you are in any doubt about your supply contact your
local electricity company.
The flexible mains lead is supplied connected to a B.S. 1363 fused plug
having a fuse of 13 amp capacity. Should this plug not fit the socket out-
lets in your home, it should be cut off and replaced with a suitable plug,
following the procedure outlined below.
Note: Such a plug cannot be used for any other appliance and should
therefore be properly disposed of and not left where children might find
it and plug it into a supply socket - with the obvious consequent danger.
N.B.We recommend the use of good quality plugs and wall sockets that
can be switched off when the machine is not in use.
important: the wires in the mains lead fitted to this appliance are
coloured in accordance with the following code:
As the colours of the wires in the mains lead of this appliance may not
correspond with the coloured markings identifying the terminals in your
plug, proceed as follows:
The wire which is coloured green and yellow must be connected to the
terminal in the plug which is marked with the letter E or by the earth
symbol or coloured green or green and yellow.
The wire which is coloured blue must be connected to the terminal
which is marked with the letter N or coloured black.
The wire which is coloured brown must be connected to the terminal
which is marked with the letter L or coloured red.
When wiring the plug, ensure that all strands of wire are securely
retained in each terminal. Do not forget to tighten the mains lead clamp
on the plug. If your electricity supply point has only two pin socket out-
lets, or if you are in doubt, consult a qualified electrician.
Should the mains lead ever require replacement, it is essential that this
operation be carried out by a qualified electrician and should only be
replaced with a flexible cord of the same size.
After replacement of a fuse in the plug, the fuse cover must be refitted.
If the fuse cover is lost, the plug must not be used until a replacement
cover is obtained.The colour of the correct replacement fuse cover is
that of the coloured insert in the base of the fuse recess or elsewhere
on the plug.Always state this colour when ordering a replacement fuse
Only 13amp replacement fuses which are asta approved to B.S. 1362
should be fitted.
This appliance conforms to the Norms EN 55014 regarding the sup-
pression of radio interference.
Warning - this appliance must be earthed
Green and Yellow to Earth
Blue to
13 amp
to Live
Cord Clamp
5748010000 6-08-2003 18:02 Pagina 10

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